| Name | Meaning | Gender | Origin |
|---|
| Karma | Fate or destiny (Hinduism and Buddhism) | Female | Hindi |
| Katie | Variant of Katherine. Pure.
| Female | English |
| Kelly | Lively: aggressive.
| Female | Irish |
| Kiki | From Enriqueta - Pet | Female | |
| Kiki | From Enriqueta - Pet | Female | |
| Kira | Dark Lady.
| Female | Russian |
| Kismet | fate, destiny | Female | Word |
| Kit Kat | | Unisex | |
| Kit Kat | | Unisex | |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kitty | Variant of Katherine. Pure.
| Female | English |
| Kizzy | From Roots | Female | English |
| Koko | stork | Female | Japanese |
| Lace | From Lassy, Normandy | Unisex | English |
| Lady | A female title of nobility. | Female | |
| Lapis | Jewel | Female | Egyptian |
| Lemon | | Unisex | Hebrew |
| Lena | Alluring, Temptress, Light | Female | Greek |
| Lestat | | Unisex | Hebrew |
| Lexi | Greek, feminine form of Alexander, defending men | Female | English |
| Licorice | Confection made from the licorice root. | Unisex | |
| Licorice Drop | | Unisex | |
| Lightning | | Unisex | Hebrew |
| Lil | English from Latin, lily, a flower | Female | English |